Radio tuner



FIG. 1 is a top view showing the new design;

FIG. 2 is a left-side view thereof;

FIG. 3 is a right-side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a right-side view thereof, shown in the operating condition;

FIG. 7 is a bottom view thereof;

FIG. 8 is an enlarged fragmentary right side view of the controls, shown separately for clarity of illustration and in the operating condition; and,

FIG. 9 is a perspective view. 

The ornamental design for a radio tuner, as shown and described. 